1. Department of Dermatology, Georgetown University School of Medicine, Washington, DC
2. Dermatology and Plastic Surgery Institute, Cleveland Clinic, Cleveland, Ohio
3. Department of Dermatology, Northeastern Ohio Medical University, Rootstown
4. Department of Clinical Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
5. Department of Dermatology, University of Mississippi Medical Center, Jackson6Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, New York